Question

HELP!! I give METALS!!
Object A with a mass of 1.5 kilograms is moving with a velocity of +11.2 meters/second (moving in the +x direction). It has a perfectly elastic collision with stationary object B that has a mass of 4.5 kilograms. After the collision, object B travels with a velocity of +5.6 meters/second. What is the final velocity for object A?

Answer 1

What kind of metals? Precious metals?

Answer 2

Any metal you want..?(: @LifeIsADangerousGame

Answer 3

These are the answer choices:
A.+3.8 meters/second in the same direction
B.-3.8 meters/second in the opposite direction
C.+5.6 meters/second in the same direction
D.-5.6 meters/second in the opposite direction
E.-6.2 meters/second in the opposite direction